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果断暴力AC#include<stdio.h>
#include<stdlib.h>
int main(){
int n,b,k,**init,i,j,x,y,min,max;
scanf("%d%d%d",&n,&b,&k);
init=(int **)malloc(n*sizeof(int *));
for(i=0;i<n;i++)
init[i]=(int *)malloc(n*sizeof(int));
for(i=0;i<n;i++)
for(j=0;j<n;j++)
scanf("%d",&init[i][j]);
while(k--){
scanf("%d%d",&x,&y);
x--;y--;
for(i=x,max=min=init[x][y];i<b+x;i++)
for(j=y;j<b+y;j++){
if(init[i][j]>max)
max=init[i][j];
if(init[i][j]<min)
min=init[i][j];
}
printf("%d\n",max-min);
}
return 0;
}
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